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made sure to keep the current stored lifetime when it was not updated

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by an RA.
(a detailed description of this issue is found at the following URL.)
http://www.tahi.org/report/freebsd/freebsd48-rc2-20030316/host/lcna-stateless-addrconf/38.html

Reported by:	Ozoe Nobumichi <ozoe@tahi.org>
		through a periodic TAHI test
Submitted by:	JINMEI Tatuya <jinmei@isl.rdc.toshiba.co.jp>
Obtained from:	KAME
This commit is contained in:
Hajimu UMEMOTO 2003-03-26 17:37:35 +00:00
parent e40f1e0cb6
commit 11f3a6e295
1 changed files with 9 additions and 3 deletions
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12
sys/netinet6/nd6_rtr.c
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@ -1085,8 +1085,15 @@ prelist_update(new, dr, m)
#define TWOHOUR (120*60)
lt6_tmp = ifa6->ia6_lifetime;
storedlifetime = IFA6_IS_INVALID(ifa6) ? 0 :
(lt6_tmp.ia6t_expire - time_second);
if (lt6_tmp.ia6t_vltime == ND6_INFINITE_LIFETIME)
storedlifetime = ND6_INFINITE_LIFETIME;
else if (IFA6_IS_INVALID(ifa6))
storedlifetime = 0;
else
storedlifetime = lt6_tmp.ia6t_expire - time_second;
/* when not updating, keep the current stored lifetime. */
lt6_tmp.ia6t_vltime = storedlifetime;
if (TWOHOUR < new->ndpr_vltime ||
storedlifetime < new->ndpr_vltime) {
@ -1857,7 +1864,6 @@ in6_init_prefix_ltimes(struct nd_prefix *ndpr)
static void
in6_init_address_ltimes(struct nd_prefix *new, struct in6_addrlifetime *lt6)
{
/* Valid lifetime must not be updated unless explicitly specified. */
/* init ia6t_expire */
if (lt6->ia6t_vltime == ND6_INFINITE_LIFETIME)
lt6->ia6t_expire = 0;